WO2007068272A1 - Devices and methods for safely evacuating an individual during an emergency from a tall structure - Google Patents

Devices and methods for safely evacuating an individual during an emergency from a tall structure Download PDF

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Publication number
WO2007068272A1
WO2007068272A1 PCT/EP2005/013484 EP2005013484W WO2007068272A1 WO 2007068272 A1 WO2007068272 A1 WO 2007068272A1 EP 2005013484 W EP2005013484 W EP 2005013484W WO 2007068272 A1 WO2007068272 A1 WO 2007068272A1
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WO
WIPO (PCT)
Prior art keywords
drum
individual
cable
rotation speed
emergency
Prior art date
Application number
PCT/EP2005/013484
Other languages
French (fr)
Inventor
Eugene Gijsbertus Maria Verstegen
Joris Veeger
Original Assignee
Verstegen Eugene Gijsbertus Ma
Joris Veeger
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Verstegen Eugene Gijsbertus Ma, Joris Veeger filed Critical Verstegen Eugene Gijsbertus Ma
Priority to PCT/EP2005/013484 priority Critical patent/WO2007068272A1/en
Priority to US12/097,075 priority patent/US20080314685A1/en
Publication of WO2007068272A1 publication Critical patent/WO2007068272A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
    • A62B1/08—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys
    • A62B1/10—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys mechanically operated

Definitions

  • the present invention relates to devices for safely evacuating an individual during an emergency from a tall structure. Specifically, the present invention relates to devices for safely lowering an individual, independent of the weight of the individual, during a fire from the higher floor levels of a tall structure to the ground level at a predetermined speed.
  • the only available escape route may be along the exterior of the building, but ordinarily that route is, under the best of circumstances, available to only the occupants of the lowest floors of the structure.
  • floors at intermediate heights of the structure could be evacuated via ladders, provided they are available, occupants of the higher floors are in great danger unless the fire can be controlled in time before it reaches and/or spreads throughout such floors.
  • this involved providing a rope or cable that is suitably anchored to the building, a mechanism frictionally engaging the rope and adapted to suspend the escaping person therefrom, and means operable by the escaping person for controlling friction to thereby lower himself at a controlled, sufficiently low speed to prevent injury upon the person's arrival on the ground.
  • tall structures could be fitted with escape devices which, on demand, automatically lower a person at a safe, controlled speed, independent on the weight of the individual, along the exterior of buildings without relying on the strength, dexterity, skill or consciousness of the person being lowered.
  • Such device should be able to resist high temperatures, should be reliable and hence have a relatively simple in construction, and easy to use even under difficult circumstances .
  • this goal is achieved by providing a device for safely evacuating an individual during an emergency from a tall structure comprising a rotatable drum, a cable of suitable length wound about said drum and rotation regulating means for controlling the rotation speed of said drum comprising a first member encasing an expandible second member rotatable in said first member, wherein the expansion of said second member is controlled by the rotation speed of said drum.
  • a tall structure can be any structure such as a multi-story office building, a skyscraper, an oil platform or a chemical plant, comprising higher floor levels which are difficult or impossible to reach from the exterior using for example ladders during an emergency such as a fire.
  • the size of the drum is determined by the length of the cable to be wound about the drum.
  • the device according to the present invention is used in a multi-story office building comprising 10 floors with a total height of approximately 40 meters and the device is fixed to the building on the 10th floor, then a cable of approximately 40 meters is necessary to safely lowering the occupants of the 10th floor to the ground level of the building.
  • the size of the drum should be sufficient to accommodate at least approximately 40 meters of cable wound about it in order to reach ground level.
  • the drum should be capable of at least accommodating a cable of approximately 32 meters to reach ground level.
  • the minimal requirement for the size of the drum is, amongst others, determined by the length of the cable wound about it, which cable length in turn is at least determined by the height of the floor to be evacuated above a safe level, such as a ground level.
  • Such safe level is not necessary ground level since it can be envisaged that individuals to be saved can be lowered to a level above ground level and from this level use other emergency escape means such as emergency stairs or an elevator to evacuate the building.
  • the phrase "a cable of sufficient length" refers to a minimal cable length necessary to reach a safe floor level allowing the individual to evacuate the tall structure .
  • the rotation regulating means for controlling the rotation speed allow for regulating the maximal rotation speed of the drum and hence the descending speed of the individual to be saved.
  • the rotation speed of the drum is restricted by the regulating means to a maximal rotation speed
  • the rate of descend of the individual to be saved is not determined by his weight, which determines only the gravitational acceleration of the descend. This means that compared to a person having less weight, the maximal rotation speed is only earlier achieved because of the higher acceleration, but his descending speed, determined by the prefixed maximal rotation speed of the drum, will not be higher.
  • the rotation regulation means comprise a first member encasing an expandible second member rotatable in said first member, wherein the expansion of said second member is controlled by the rotation speed of said drum.
  • the rotation of the drum initiated by an individual engaging the device according to the present invention during an emergency is translated on the second member causing it to start rotating within the first member. Said rotation of the second member will cause a centrifugal force on the second member causing it to expand in the direction of the inner surface of the first member.
  • the centrifugal force is directly related to the rotation speed of the drum, the higher the rotation speed of the drum, the larger the centrifugal force on the second member will be. Because there is also a positive correlation between the centrifugal force on the second member and the expansion of the second member, at a predetermined rotation speed of the drum, the expansion of the second member will become large enough to frictionally engage the inner surface of the first member.
  • This frictional engagement of the second member with the first member will prevent a further increase in rotation speed of the second member and thereby the rotation speed of the drum, limiting the descending speed of the individual engaging the device according to the present invention.
  • the first member has a cylindrical form, thereby providing a maximal inner surface area of the first member capable of frictionally engaging the expandable second member. This allows for an optimal counter force for the centrifugal force of the second member, thereby, amongst others, minimalizing the size and weight of the rotation regulating means.
  • the second member has a cylindrical form to further maximalize the frictional engagement with the first member.
  • the second member of the means for controlling the rotation speed of the drum comprises two or more break shoes connected by a spring mechanism.
  • the two or more brake shoes engage the inner surface of the first member thereby providing the counter force necessary to prevent further expansion of the second member due to the centrifugal force.
  • the spring mechanism connecting the two or more brake shoes determines the rate of expansion of the second member in response to the centrifugal force created by the rotation speed of the drum.
  • the spring force counteracts the centrifugal force thereby allowing to easily predetermine the maximal rotation speed of the drum by adjusting the strength of the springs employed.
  • a rotation speed of the drum is predetermined to allow a descending speed of the individual to be saved of 2 to 20 km/h, preferably, 5 to 15 km/h, more preferably 5 to 10 km/h by adjusting the counter force provided by the spring mechanism.
  • the drum and cable are embodied in metal. Embodying these components of the device according to the present invention in metal provide maximal resistance to, for example, high temperatures caused by a fire.
  • embodying the cable in metal allows for a reduction of the weight of the cable which is determined by both the necessary length of the cable for reaching a safe floor level and the weight of the individual it should be able carry without breaking.
  • Metal provides, using relatively thin cables, a considerable weight reduction and loading capacity.
  • the regulating means for controlling the rotation speed are preferably embodied in metal.
  • certain specific parts of the rotation speed regulation means are not embodied in metal such as for example the breaking shoes of the second member.
  • the device preferably comprises means for attachment of the device to the tall structure such as a framework encasing the device according to the present invention.
  • the device according to the present invention further comprises means for attachment of the individual to the end of the cable.
  • Such means can for example be a hook, a harness, a seat, a cage, a loop, and a handle.
  • the device according to the present invention comprises means, such as a handle or a motor, for rewinding the cable about the drum after the device has been used to evacuate one individual.
  • means such as a handle or a motor, for rewinding the cable about the drum after the device has been used to evacuate one individual. This embodiment allows for the evacuation of multiple individuals using a single device.
  • the device according to the present invention provides on demand, automatically lowering of a person at a safe, controlled speed, independent of the weight of the individual, along the exterior of buildings without relying on the strength, dexterity, skill or consciousness of the person being lowered. Further, the device according to the present invention is resistant to high temperatures, is reliable resistant easy to use even under difficult circumstances.
  • the present invention also relates to a method for safely evacuating an individual during an emergency from a tall structure comprising attachment of the individual to the device according to the present invention and lowering the individual to the ground level using the device .
  • the above method for safely evacuating individuals during an emergency from a tall structure comprises :
  • Figure 1 represents a view in perspective of a device according to the present invention
  • Figure 2 represents an exploded view of the device shown in figure 1
  • Figure 3 represents a detailed view of the device shown in figure 1 in the free rotation mode (A) and in the inhibited rotation mode (B) ;
  • Figure 4 represents a view in perspective of an other preferred embodiment of a device according to the present invention.
  • Figure 5 represents an exploded view of the device shown in figure 4
  • Figure 6 represents a detailed view of the device shown in figure 4 in the free rotation mode (A) and in the inhibited rotation mode (B) ;
  • Figure 7 represents a schematic drawing of an individual which is lowered from a tall structure using a device according to the present invention attached to the tall structure during a fire.
  • figure 1 shows a safety device (1) according to the present invention comprising a drum (2) and a cable (3) of suitable length wound about said drum (2) .
  • the drum (2) is mounted on an axle (4) rotatable in a frame (5) using ball-bearings (6).
  • the axle (4) translates the rotation of the drum to rotation regulating means (7) also conveniently mounted on frame (5) .
  • a hook fastener (16) connected to cable (3) allows coupling of an individual to be saved to the safety device (1) according to the present invention.
  • FIG. 2 shows the above described safety device in an exploded view specifically detailing the rotation regulating means (7).
  • the rotation regulating means shown comprise a first substantially cylindrical member (8) encasing a second substantially cylindrical member (9) .
  • the second substantially cylindrical member (9) comprises two elements (10) connected to each other by a spring mechanism (11) .
  • the second substantially cylindrical member (9) starts to rotate in the substantially cylindrical first member (8). This rotation will create a centrifugal force causing the second substantially cylindrical member (9) to expand. This expansion drives the two elements (10) in the direction of the inner surface of the substantially cylindrical first member (8).
  • This control allows to predetermine at which rotation speed of the axle (4) and thereby the drum (2), the two expandable members (10) will frictionally engage, and hence limit the rotation speed of the drum (2), the inner surface of the first substantially cylindrical member (8).
  • FIG. 1 A detailed view of the two expandable elements (10) and the spring mechanism (11) shown in figure 2, is provided in the figures 3A and 3B.
  • Figure 3A shows the expandable elements (10) comprising a portion (12) providing the attachment of the spring mechanism (11) and the translation of the rotation of the axle (4) on portion (12) through element (13).
  • the outer surface of portion (12) is at least partially covered by a layer (14) for frictionally engaging the inner surface of the first substantially cylindrical member (8).
  • FIG 4 shows another preferred embodiment of the safety device (20) according to the present invention comprising a drum (21) and a cable (22) of suitable length wound about said drum (21) .
  • the drum (21) is mounted on an axle (23) rotatable in a frame (37) using ball-bearings (25).
  • the axle (23) translates the rotation of the drum to rotation regulating means (24) also conveniently mounted on frame (37) .
  • a hook fastener (25) connected to cable (22) allows coupling of an individual to be saved to the safety device (20) according to the present invention.
  • Frame (37) is attached to the tall structure (26) using bolt/nut (27) connections.
  • the entire safety device (20) is surrounded by an enclosure (28) comprising an opening (29) to allow the cable (22) to pass through.
  • FIG. 5 shows the above described safety device in an exploded view specifically detailing the speed regulating means (24).
  • the rotation regulating means shown comprise a first substantially cylindrical member (30) encasing a second substantially cylindrical member (31).
  • the second substantially cylindrical member (31) comprises two elements (32) connected to each other by a spring mechanism (33) .
  • the second substantially cylindrical member (31) Upon rotation of axle (23) , the second substantially cylindrical member (31) starts to rotate in the first substantially cylindrical first member (30) . This rotation will create a centrifugal force causing the second substantially cylindrical member (31) to expand. This expansion drives the two elements (32) in the direction of the inner surface of the substantially cylindrical first member (30) .
  • the expansion of the second substantially cylindrical member (31) is counteracted by the spring mechanism (33) providing control the rate of expansion of the second substantially cylindrical member (31) .
  • This control allows to predetermine at which rotation speed of the axle (23) and thereby the drum (21), the two expandable members (32) will frictionally engage, and hence limit the rotation speed of the drum (21) , the inner surface of the first substantially cylindrical member (30) .
  • FIG. 5 A detailed view of the two expandable elements (32) and the spring mechanism (33) shown in figure 5, is provided in the figures 6A and 6B.
  • Figure 6A shows the expandable elements (32) comprising a portion (34) providing the attachment of the spring mechanism (33) and the translation of the rotation of the axle (23) on the second substantially cylindrical member (31).
  • the outer surface of the portion (34) is at least partially covered by a layer (35) for frictionally engaging the inner surface of the first substantially cylindrical member (30) .
  • a layer (35) for frictionally engaging the inner surface of the first substantially cylindrical member (30) .
  • the layer (35) will frictionally engage the inner surface of the substantially cylindrical first member (30), thereby inhibiting a further increase of the rotation of the axle (23) and, as consequence, the rotation of the drum (21), thereby allowing a control descend of an individual to be rescued.
  • FIG 7 shows the use of a safety device (1, 20) according to the present invention during an emergency.
  • the safety device (1, 20) is firmly attached to a tall structure (40) .
  • the individual (41) to be rescued attaches himself to the cable (3, 22) and is lowered, at a predetermined speed independent of the weight of the individual (41) , by the safety device (1, 20) along the exterior of the tall structure (40) to a safe level (42), in the embodiment shown the ground level .

Abstract

The present invention relates to devices for safely lowering an individual, independent of the weight of the individual, during a fire from the higher floor levels of a tall structure to the ground level at a predetermined speed For this, the present invention provides a device (1) for safely evacuating a: individual (41) during an emergency from a tall structure comprising a rotatable drum (2), a cable (3) of suitable length wound about said drum and rotation regulating means (7) for controlling the rotation speed of said drum comprising a first member encasing an expandible second member rotatable in said first member (8), wherein the expansion of said second member (9) is controlled by the rotation speed of said drum.

Description

DEVICES AND METHODS FOR SAFELY EVACUATING AN INDIVIDUAL DURING AN EMERGENCY FROM A TALL STRUCTURE.
The present invention relates to devices for safely evacuating an individual during an emergency from a tall structure. Specifically, the present invention relates to devices for safely lowering an individual, independent of the weight of the individual, during a fire from the higher floor levels of a tall structure to the ground level at a predetermined speed.
During emergencies such as fires, it becomes often necessary to rapidly evacuate persons from the affected structure such as a high-rise building. This can become difficult, dangerous and even impossible if access to the internal fire escapes is blocked; for example, by flames and/or smoke.
In such cases, the only available escape route may be along the exterior of the building, but ordinarily that route is, under the best of circumstances, available to only the occupants of the lowest floors of the structure.
While floors at intermediate heights of the structure could be evacuated via ladders, provided they are available, occupants of the higher floors are in great danger unless the fire can be controlled in time before it reaches and/or spreads throughout such floors.
The above, became particularly apparent when a tall structure as the World Trade Centre in New York was struck by a terrorist attack on September 11, 2001. A large number of lives was lost because it became impossible to evacuate the people from the higher floors soon after the fire had started. Attempts have been made to provide occupants of high- rise structures with a way to escape along the exterior of the building during emergencies.
Typically, this involved providing a rope or cable that is suitably anchored to the building, a mechanism frictionally engaging the rope and adapted to suspend the escaping person therefrom, and means operable by the escaping person for controlling friction to thereby lower himself at a controlled, sufficiently low speed to prevent injury upon the person's arrival on the ground.
However, these devices have a number of drawbacks, including their reliance on power from the person descending to slow the rate of descent and their need for some skill on the part of the descending person to properly operate it. Even in case the individual to be evacuated is physically strong enough to slow rate of decent and has sufficient skill to operate the device, the mere circumstances during an emergency, like for example panic and confusion, will make it difficult for such individual to safely reach ground level.
From operational and safety points of view, it would therefore be preferred if tall structures could be fitted with escape devices which, on demand, automatically lower a person at a safe, controlled speed, independent on the weight of the individual, along the exterior of buildings without relying on the strength, dexterity, skill or consciousness of the person being lowered.
Further, such device should be able to resist high temperatures, should be reliable and hence have a relatively simple in construction, and easy to use even under difficult circumstances .
It is a goal, amongst others, of the present invention to address the above needs. According to the present invention, this goal is achieved by providing a device for safely evacuating an individual during an emergency from a tall structure comprising a rotatable drum, a cable of suitable length wound about said drum and rotation regulating means for controlling the rotation speed of said drum comprising a first member encasing an expandible second member rotatable in said first member, wherein the expansion of said second member is controlled by the rotation speed of said drum. According to the present invention, a tall structure can be any structure such as a multi-story office building, a skyscraper, an oil platform or a chemical plant, comprising higher floor levels which are difficult or impossible to reach from the exterior using for example ladders during an emergency such as a fire.
According to the present invention, the size of the drum is determined by the length of the cable to be wound about the drum.
If, for example, the device according to the present invention is used in a multi-story office building comprising 10 floors with a total height of approximately 40 meters and the device is fixed to the building on the 10th floor, then a cable of approximately 40 meters is necessary to safely lowering the occupants of the 10th floor to the ground level of the building.
Hence the size of the drum should be sufficient to accommodate at least approximately 40 meters of cable wound about it in order to reach ground level.
In the above situation, if the device is fixed to the 8th floor, then the drum should be capable of at least accommodating a cable of approximately 32 meters to reach ground level. Thus, the minimal requirement for the size of the drum is, amongst others, determined by the length of the cable wound about it, which cable length in turn is at least determined by the height of the floor to be evacuated above a safe level, such as a ground level.
Such safe level is not necessary ground level since it can be envisaged that individuals to be saved can be lowered to a level above ground level and from this level use other emergency escape means such as emergency stairs or an elevator to evacuate the building.
Because of this, the phrase "a cable of sufficient length" refers to a minimal cable length necessary to reach a safe floor level allowing the individual to evacuate the tall structure . According to the present invention, the rotation regulating means for controlling the rotation speed allow for regulating the maximal rotation speed of the drum and hence the descending speed of the individual to be saved.
Since, the rotation speed of the drum is restricted by the regulating means to a maximal rotation speed, the rate of descend of the individual to be saved is not determined by his weight, which determines only the gravitational acceleration of the descend. This means that compared to a person having less weight, the maximal rotation speed is only earlier achieved because of the higher acceleration, but his descending speed, determined by the prefixed maximal rotation speed of the drum, will not be higher.
To achieve such prefixed maximal rotation speed of the drum, the rotation regulation means comprise a first member encasing an expandible second member rotatable in said first member, wherein the expansion of said second member is controlled by the rotation speed of said drum. According to the present invention, the rotation of the drum initiated by an individual engaging the device according to the present invention during an emergency is translated on the second member causing it to start rotating within the first member. Said rotation of the second member will cause a centrifugal force on the second member causing it to expand in the direction of the inner surface of the first member.
Because the centrifugal force is directly related to the rotation speed of the drum, the higher the rotation speed of the drum, the larger the centrifugal force on the second member will be. Because there is also a positive correlation between the centrifugal force on the second member and the expansion of the second member, at a predetermined rotation speed of the drum, the expansion of the second member will become large enough to frictionally engage the inner surface of the first member.
This frictional engagement of the second member with the first member will prevent a further increase in rotation speed of the second member and thereby the rotation speed of the drum, limiting the descending speed of the individual engaging the device according to the present invention.
According to an preferred embodiment of the present invention, the first member has a cylindrical form, thereby providing a maximal inner surface area of the first member capable of frictionally engaging the expandable second member. This allows for an optimal counter force for the centrifugal force of the second member, thereby, amongst others, minimalizing the size and weight of the rotation regulating means.
According to a more preferred embodiment of the present invention, also the second member has a cylindrical form to further maximalize the frictional engagement with the first member.
According to one preferred aspect of the present invention, the second member of the means for controlling the rotation speed of the drum comprises two or more break shoes connected by a spring mechanism.
Upon sufficient expansion of the second member, the two or more brake shoes engage the inner surface of the first member thereby providing the counter force necessary to prevent further expansion of the second member due to the centrifugal force.
On the other hand, the spring mechanism connecting the two or more brake shoes, determines the rate of expansion of the second member in response to the centrifugal force created by the rotation speed of the drum.
Specifically, the stronger the spring force of the spring mechanism connecting the two or more break shoes, the higher centrifugal force, and hence rotation speed of the drum, is necessary before the second member frictionally engages the inner surface of the first member..
In other words, the spring force counteracts the centrifugal force thereby allowing to easily predetermine the maximal rotation speed of the drum by adjusting the strength of the springs employed. Usually, a rotation speed of the drum is predetermined to allow a descending speed of the individual to be saved of 2 to 20 km/h, preferably, 5 to 15 km/h, more preferably 5 to 10 km/h by adjusting the counter force provided by the spring mechanism. In a particularly preferred embodiment, the drum and cable are embodied in metal. Embodying these components of the device according to the present invention in metal provide maximal resistance to, for example, high temperatures caused by a fire.
In addition, embodying the cable in metal allows for a reduction of the weight of the cable which is determined by both the necessary length of the cable for reaching a safe floor level and the weight of the individual it should be able carry without breaking. Metal provides, using relatively thin cables, a considerable weight reduction and loading capacity. Because of the resistance of metal to fire, also the regulating means for controlling the rotation speed are preferably embodied in metal. However, it can be envisaged that certain specific parts of the rotation speed regulation means are not embodied in metal such as for example the breaking shoes of the second member.
To facilitate attachment of the device according to the present invention to a tall structure, the device preferably comprises means for attachment of the device to the tall structure such as a framework encasing the device according to the present invention.
Preferably, the device according to the present invention further comprises means for attachment of the individual to the end of the cable. Such means can for example be a hook, a harness, a seat, a cage, a loop, and a handle.
In one other preferred embodiment, the device according to the present invention comprises means, such as a handle or a motor, for rewinding the cable about the drum after the device has been used to evacuate one individual. This embodiment allows for the evacuation of multiple individuals using a single device.
The device according to the present invention provides on demand, automatically lowering of a person at a safe, controlled speed, independent of the weight of the individual, along the exterior of buildings without relying on the strength, dexterity, skill or consciousness of the person being lowered. Further, the device according to the present invention is resistant to high temperatures, is reliable resistant easy to use even under difficult circumstances.
Therefore, the present invention also relates to a method for safely evacuating an individual during an emergency from a tall structure comprising attachment of the individual to the device according to the present invention and lowering the individual to the ground level using the device .
Preferably, the above method for safely evacuating individuals during an emergency from a tall structure comprises :
(a) attachment of a first individual to a device according to the present invention; (b) lowering the first individual to a safe level using the device;
(c) rewinding the cable about the drum;
(d) attachment of a second individual to a device according to the present invention;
(e) lowering the second individual to the ground level using the device; and
(f) optionally, repeating steps (c) to (e) . Certain preferred embodiments of the present invention will be further illustrated by the accompanying drawings wherein: Figure 1 : represents a view in perspective of a device according to the present invention;
Figure 2: represents an exploded view of the device shown in figure 1; Figure 3 : represents a detailed view of the device shown in figure 1 in the free rotation mode (A) and in the inhibited rotation mode (B) ;
Figure 4 : represents a view in perspective of an other preferred embodiment of a device according to the present invention;
Figure 5: represents an exploded view of the device shown in figure 4; Figure 6: represents a detailed view of the device shown in figure 4 in the free rotation mode (A) and in the inhibited rotation mode (B) ;
Figure 7: represents a schematic drawing of an individual which is lowered from a tall structure using a device according to the present invention attached to the tall structure during a fire.
Specifically, figure 1 shows a safety device (1) according to the present invention comprising a drum (2) and a cable (3) of suitable length wound about said drum (2) . The drum (2) is mounted on an axle (4) rotatable in a frame (5) using ball-bearings (6). The axle (4) translates the rotation of the drum to rotation regulating means (7) also conveniently mounted on frame (5) .
In the preferred embodiment shown in figure 1, a hook fastener (16) connected to cable (3) allows coupling of an individual to be saved to the safety device (1) according to the present invention.
Figure 2 shows the above described safety device in an exploded view specifically detailing the rotation regulating means (7). The rotation regulating means shown comprise a first substantially cylindrical member (8) encasing a second substantially cylindrical member (9) . In the preferred embodiment shown, the second substantially cylindrical member (9) comprises two elements (10) connected to each other by a spring mechanism (11) .
Upon rotation of axle (4), the second substantially cylindrical member (9) starts to rotate in the substantially cylindrical first member (8). This rotation will create a centrifugal force causing the second substantially cylindrical member (9) to expand. This expansion drives the two elements (10) in the direction of the inner surface of the substantially cylindrical first member (8).
However, the expansion of the second substantially cylindrical member (9) is counteracted by the spring mechanism (11) providing control the rate of expansion of the second substantially cylindrical member (9) .
This control allows to predetermine at which rotation speed of the axle (4) and thereby the drum (2), the two expandable members (10) will frictionally engage, and hence limit the rotation speed of the drum (2), the inner surface of the first substantially cylindrical member (8).
A detailed view of the two expandable elements (10) and the spring mechanism (11) shown in figure 2, is provided in the figures 3A and 3B.
Figure 3A shows the expandable elements (10) comprising a portion (12) providing the attachment of the spring mechanism (11) and the translation of the rotation of the axle (4) on portion (12) through element (13). The outer surface of portion (12) is at least partially covered by a layer (14) for frictionally engaging the inner surface of the first substantially cylindrical member (8). When the axle (4), and hence the drum (2), is not rotating, meaning that the device (1) according to the present invention is not in use, or the axle (4) is rotating at a speed lower than a predetermined speed controlled by the spring mechanism (11), than the gap (15) between the first substantially cylindrical member (8) and the layer (14) provides free rotation of the second substantially cylindrical member (9) .
However, at a predetermined rotation speed of the axle (4), as shown in figure 3B, the layer (14) will frictionally engage the inner surface of the substantially cylindrical first member (8), thereby inhibiting a further increase of the rotation of the axle (4) and, as consequence, the rotation of the drum (2) thereby allowing a control descend of an individual to be rescued. Figure 4 shows another preferred embodiment of the safety device (20) according to the present invention comprising a drum (21) and a cable (22) of suitable length wound about said drum (21) . The drum (21) is mounted on an axle (23) rotatable in a frame (37) using ball-bearings (25). The axle (23) translates the rotation of the drum to rotation regulating means (24) also conveniently mounted on frame (37) .
In the preferred embodiment shown in figure 4, a hook fastener (25) connected to cable (22) allows coupling of an individual to be saved to the safety device (20) according to the present invention.
Frame (37) is attached to the tall structure (26) using bolt/nut (27) connections. The entire safety device (20) is surrounded by an enclosure (28) comprising an opening (29) to allow the cable (22) to pass through.
Figure 5 shows the above described safety device in an exploded view specifically detailing the speed regulating means (24). The rotation regulating means shown comprise a first substantially cylindrical member (30) encasing a second substantially cylindrical member (31). In the preferred embodiment shown, the second substantially cylindrical member (31) comprises two elements (32) connected to each other by a spring mechanism (33) .
Upon rotation of axle (23) , the second substantially cylindrical member (31) starts to rotate in the first substantially cylindrical first member (30) . This rotation will create a centrifugal force causing the second substantially cylindrical member (31) to expand. This expansion drives the two elements (32) in the direction of the inner surface of the substantially cylindrical first member (30) .
However, the expansion of the second substantially cylindrical member (31) is counteracted by the spring mechanism (33) providing control the rate of expansion of the second substantially cylindrical member (31) .
This control allows to predetermine at which rotation speed of the axle (23) and thereby the drum (21), the two expandable members (32) will frictionally engage, and hence limit the rotation speed of the drum (21) , the inner surface of the first substantially cylindrical member (30) .
A detailed view of the two expandable elements (32) and the spring mechanism (33) shown in figure 5, is provided in the figures 6A and 6B.
Figure 6A shows the expandable elements (32) comprising a portion (34) providing the attachment of the spring mechanism (33) and the translation of the rotation of the axle (23) on the second substantially cylindrical member (31).
The outer surface of the portion (34) is at least partially covered by a layer (35) for frictionally engaging the inner surface of the first substantially cylindrical member (30) . When the axle (23) , and hence the drum (21) , is not rotating, meaning that the device (20) according to the present invention is not in use, or the axle (23) is rotating at a speed lower than a predetermined speed controlled by the spring mechanism (33), than a gap (36) between the first substantially cylindrical member (30) and the layer (35) provides free rotation of the second substantially cylindrical member (31).
However, at a predetermined rotation speed of the axle (23), as shown in figure 6B, the layer (35) will frictionally engage the inner surface of the substantially cylindrical first member (30), thereby inhibiting a further increase of the rotation of the axle (23) and, as consequence, the rotation of the drum (21), thereby allowing a control descend of an individual to be rescued.
Figure 7 shows the use of a safety device (1, 20) according to the present invention during an emergency. The safety device (1, 20) is firmly attached to a tall structure (40) . The individual (41) to be rescued attaches himself to the cable (3, 22) and is lowered, at a predetermined speed independent of the weight of the individual (41) , by the safety device (1, 20) along the exterior of the tall structure (40) to a safe level (42), in the embodiment shown the ground level .

Claims

CIiAIMS
1. Device for safely evacuating an individual during an emergency from a tall structure comprising a rotatable drum, a cable of suitable length wound about said drum and rotation regulating means for controlling the rotation speed of said drum comprising a first member encasing an expandible second member rotatable in said first member, wherein the expansion of said second member is controlled by the rotation speed of said drum.
2. Device according to claim 1, wherein the first member has a cylindrical form.
3. Device according to claim 2, wherein the second member has a cylindrical form.
4. Device according to any of the claims 1 to 3, wherein the expandible member comprises two or more break shoes connected by a spring mechanism.
5. Device according to any of the claims 1 to 4, wherein the drum and cable are embodied in metal.
6. Device according to any of the claims 1 to 5, wherein the regulating means for controlling the rotation speed are embodied in metal .
7. Device according to any of the claims 1 to β, wherein the device comprises means for attachment of the device to the tall structure.
8. Device according to any of the claims 1 to 7, wherein the device comprises means for attachment of the individual to the cable.
9. Device according to claim 8, wherein the means for attachment of the individual to the cable are selected from the group consisting of a hook, a harness, a seat, a cage, a loop, and a handle.
10. Device according to any of the claims 1 to 9, comprising means for winding the cable about the drum.
11. Method for safely evacuating an individual during an emergency from a tall structure comprising attachment of the individual to a device according to any of the claims 1 to 10 and lowering the individual to a safe level using the device.
12. Method for safely evacuating individuals during an emergency from a tall structure comprising.:
(a) attachment of a first individual to a device according to any of the claims 1 to 10;
(b) lowering the first individual to a safe level using the device;
(c) rewinding the cable about the drum;
(d) attachment of a second individual to a device according to any of the claims 1 to 10; (e) lowering the second individual to the ground level using the device; and (f) optionally, repeating steps (c) to (e) .
PCT/EP2005/013484 2005-12-14 2005-12-14 Devices and methods for safely evacuating an individual during an emergency from a tall structure WO2007068272A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103736216A (en) * 2014-02-14 2014-04-23 范雲鹤 Novel high building escape device
RU204442U1 (en) * 2020-11-17 2021-05-25 Федеральное Государственное Казенное Военное Образовательное Учреждение Высшего Образования "Военный Учебно-Научный Центр Сухопутных Войск "Общевойсковая Ордена Жукова Академия Вооруженных Сил Российской Федерации" Mechanism for lowering cargo from an unmanned aerial vehicle

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050023085A1 (en) * 2003-07-30 2005-02-03 Munton Timothy John Lifesaver apparatus
US8499890B2 (en) * 2007-07-18 2013-08-06 Rescue Reel, Llc Personal escape device
US20100252365A1 (en) * 2009-04-01 2010-10-07 Feller Christian W Personnel Transfer Device
GB0910998D0 (en) * 2009-06-24 2009-08-05 Drop Zone Uk Ltd Regulated descender
US20110138699A1 (en) * 2010-06-29 2011-06-16 Thomas Niehues Rescue kit for a wind turbine, a wall for a wind turbine, and a portion of a compartment of a wind turbine
NL2011756C2 (en) * 2013-08-05 2015-02-09 Evacuator Internat Property B V Device for evacuating individuals.
US20150258354A1 (en) * 2014-03-13 2015-09-17 David James Lyon Belay bar
TWI684472B (en) * 2018-09-11 2020-02-11 振鋒企業股份有限公司 Anti-dropping device
US20210228915A1 (en) * 2020-01-23 2021-07-29 Pella Corporation Escape systems for descending a person from a window
IT202000005701A1 (en) 2020-03-17 2021-09-17 Roberto Mantese EMERGENCY DEVICE FOR QUICK EVACUATION OF HIGH FLOORS OF BUILDINGS

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4416430A (en) * 1982-02-01 1983-11-22 Draft Systems, Inc. Load lowering device
US4623038A (en) * 1985-06-04 1986-11-18 Enzo Stancato Portable escape device
US5060758A (en) * 1986-12-28 1991-10-29 Tbr Corporation Emergency descending device

Family Cites Families (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US422159A (en) * 1890-02-25 Fire-escape
US1308480A (en) * 1919-07-01 Puvnoorapil co
US184978A (en) * 1876-12-05 Improvement in fire-escapes
US425554A (en) * 1890-04-15 Fire-escape
US493490A (en) * 1893-03-14 Fiee escape
US631382A (en) * 1899-04-13 1899-08-22 Wesley Rees Fire-escape.
US701094A (en) * 1901-05-02 1902-05-27 Julius Setbacken Fire-escape.
US1333530A (en) * 1919-04-12 1920-03-09 Laura M Scarborough Fire-escape
US1500943A (en) * 1923-07-12 1924-07-08 Jean D Jolkovski Fire escape
US1593704A (en) * 1925-04-06 1926-07-27 Lonnie E Morris Centrifugal speed control for fire escapes
US2122315A (en) * 1936-06-11 1938-06-28 Fosty Leopold Fire escape
US2518934A (en) * 1946-08-14 1950-08-15 Hayden H Renner Safety device
US2544729A (en) * 1947-01-10 1951-03-13 Schauer Walter Fire escape cable drum
US2526065A (en) * 1947-05-26 1950-10-17 Joseph P Chodacki Fire escape
US2665111A (en) * 1952-08-21 1954-01-05 Sokolik Edward Body lowering apparatus
US2896912A (en) * 1955-11-15 1959-07-28 Faugier Gabriel Safety apparatus
GB1007645A (en) * 1962-01-10 1965-10-13 Safety Automatic Fire Escapes Improvements in or relating to safety lowering apparatus
US3587474A (en) * 1968-05-23 1971-06-28 Roehrs Werner Dr Kg Dragline winch for ski tows and the like
CA988476A (en) * 1972-05-22 1976-05-04 Masao Tsuda Slow descender
US3879016A (en) * 1973-09-07 1975-04-22 Sisarakenneteollisuus Oy Sirat Safety device
US3915432A (en) * 1973-11-13 1975-10-28 Carlos Roberto Bustamante Triple action mechanical chute-hoist
US3907256A (en) * 1974-04-03 1975-09-23 Kauko Valdemar Kankkunen Device for lowering persons and loads
DE2722744A1 (en) * 1977-05-20 1978-11-23 Eckhard Dr Ing Hildebrandt ROLLING DEVICE FOR SAFETY BELTS OF MOTOR VEHICLES
US4432437A (en) * 1981-06-10 1984-02-21 Mcclung Thomas E Fire escape system
US4448284A (en) * 1982-02-26 1984-05-15 Renzo Ciabo People rescue device
US4457400A (en) * 1982-09-16 1984-07-03 Gernnimo Industries, Ltd. Emergency descent device
US4469196A (en) * 1982-09-30 1984-09-04 Charlton Sadler Fire escape device
US4458781A (en) * 1982-09-30 1984-07-10 Ellis J Nigel Climbing aid and safety descent device
JPS59217589A (en) * 1983-05-26 1984-12-07 株式会社宮野鉄工所 Slow elevator
US4653609A (en) * 1984-11-30 1987-03-31 Devine Millard J Controlled descent apparatus
US4611688A (en) * 1985-07-22 1986-09-16 Sekhar Rajagopalan C Re-windable fire escape
US4941549A (en) * 1989-09-19 1990-07-17 Da Tan Liou Fire escape apparatus
GB9027783D0 (en) * 1990-12-21 1991-02-13 Barrow Hepburn Sala Ltd Safety anchorages for controlling pay-out of a safety line
US5052523A (en) * 1991-02-14 1991-10-01 Otis Elevator Company Elevator car-mounted govenor system
US5094405A (en) * 1991-03-26 1992-03-10 Southwest Aerospace Corporation Mechanically braked towed vehicle deployment device
AU679604B2 (en) * 1994-01-13 1997-07-03 Sala Group Limited Speed responsive coupling device especially for fall arrest apparatus
US5501411A (en) * 1994-03-14 1996-03-26 Southwest Aerospace Corporation Towed vehicle deployment apparatus having guide to reduce line pull-off angle
US5836535A (en) * 1994-03-14 1998-11-17 Southwest Aerospace Corporation Towed vehicle deployment apparatus incorporating mechanical brake
AU2001273177A1 (en) * 2000-07-06 2002-01-21 Rose Manufacturing Company Controlled descent device
US6793038B2 (en) * 2001-10-15 2004-09-21 Moshe Meller Method and apparatus for rescuing occupants from high structures using replaceable cable cartridges and dynamic resistance device
GB2385523B (en) * 2002-02-25 2004-01-07 Ronan Anthony Byrne Descent apparatus
US6966407B2 (en) * 2002-09-18 2005-11-22 Loren Eugene Karnes Escape-Right
US20050023085A1 (en) * 2003-07-30 2005-02-03 Munton Timothy John Lifesaver apparatus
US7281620B2 (en) * 2003-09-05 2007-10-16 D B Industries, Inc. Self-retracting lifeline
US20070235254A1 (en) * 2006-04-07 2007-10-11 Charles Dean Soucek High rise building fire escape mechanism
GB2440134B (en) * 2006-07-14 2011-04-20 Latchways Plc Speed responsive engagement device
US8893854B2 (en) * 2007-09-28 2014-11-25 D B Industries, Llc Retractable lifeline assembly
US8567562B2 (en) * 2009-11-02 2013-10-29 B D Industries, LLC Brake assembly for a self-retracting lifeline assembly
EP2609963A1 (en) * 2011-12-29 2013-07-03 Cresto AB Descending device with direct drive centrifugal brake

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4416430A (en) * 1982-02-01 1983-11-22 Draft Systems, Inc. Load lowering device
US4623038A (en) * 1985-06-04 1986-11-18 Enzo Stancato Portable escape device
US5060758A (en) * 1986-12-28 1991-10-29 Tbr Corporation Emergency descending device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103736216A (en) * 2014-02-14 2014-04-23 范雲鹤 Novel high building escape device
RU204442U1 (en) * 2020-11-17 2021-05-25 Федеральное Государственное Казенное Военное Образовательное Учреждение Высшего Образования "Военный Учебно-Научный Центр Сухопутных Войск "Общевойсковая Ордена Жукова Академия Вооруженных Сил Российской Федерации" Mechanism for lowering cargo from an unmanned aerial vehicle

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